Refer to the double-bar graph below which shows the number of male (M) and female (F) athletes at a university over a four-year period. Solve the problem. 
YEARWhat is the only year in which the number of female athletes declined from its previous value?
A. 1988
B. 1986
C. 1987
D. 1989
Answer: D
Mathematics
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?
?
A. 
B. 
C. 
D. 
E. 
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Look for a pattern and then predict the general term, or nth term, an, of the sequence.6, 12, 18, 24, 30, . . .
A. an = 6n B. an = n + 6 C. an = n6 D. an = 7n
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Perform long division.
A. x - 6 + 
B. x + 6 + 
C. x - 6 + 
D. x + 18 + 
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Remove parentheses and simplify the expression.- 
(z - 15) - 
z
A. 
z + 
B. - 
z + 
C. 
z - 
D. 
z + 15
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